Perhaps you should try some spelling variations:
chua tinh » cua tinh, cha tinh, thuat tinh
nang cong » nang song, dang cong, bang cong
chu tinh » chau tinh, cuu tinh, chu tich
hang van » hoang van, dang van, tang van
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu tinh) OR (chua tinh)) - hanh ((hang van) or (hang va)) nang cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu tinh) OR (chua tinh)) - hanh ((hang van) OR (hang va)) nang cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu tinh) OR (chua tinh)) - hanh ((hang van) or (hang va)) nang cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu tinh) OR (chua tinh)) - hanh ((hang van) or (hang va)) nang cong dan toan ban*.